Blender Git Commits

- added early versions of OpenVDBVolume, OpenVDBUtil and OpenVDBVolumeAccessor to openvdb_volume.h;
- added a version of vdb_print as an executable target of /cycles/app to aid in testing;

Testing deformation without compute implicit rotations.
Implicit rotations cause erroneous solutions.

Some renames, operators for adding colours to palette, fixes to
read/write of palettes, RNA properties of colours.

* Use writedata instead of writestruct.
* Vertex painting did not work due to own mistake in backbuffer
sampling.

File saving code for palettes.

Merge trunk -r58270 into soc-2013-paint

The operator redo panel now uses a two column layout. Labels on the left, widgets on the right. This increases readability and is part of an attempt to minimise scrolling.

Minor stuff, reorganize UI for secondary color/palette list, add color
icon for palettes.

Merge trunk -r58222 into soc-2013-paint

svn merge ^/trunk/blender 58040:58270

Merging from trunk r58267 into soc-2013-motion_track

The code was organized and optimized.
The system has problems with the handling of events.
The deformation system is activated with the special menu key W "Laplacian Deform" in vertex editing mode.
The system works with keys Pkey, Hkey, Skey
You must mark the static vertices with Skey, then the handlers with hkey, and then you can move the handles and calculate the deformation with Pkey.

Add constraints for focal length refinement

The user can apply a ranged constraint to the focal length during refinement. When the focal length is selected for refinement in the solve panel, a constraint can be applied by checking "Constrain Focal Length" and entering the appropriate minimum and maximum values. The camera focal length will only be refined within this range. This is useful when an unconstrained refinement gives an incorrect result and a suitable range is known.

This includes the following changes:
- Addition of constraint UI with corresponding RNA properties. The constraint is displayed in the same units chosen for the camera focal length. The values are restricted such that min is no greater than focal length and max is no less than it.
- Data structure modifications to allow passing of constraint values from the UI to libmv.
- Modifications to the libmv simple pipeline API to incorporate constraints.
- Constraining focal length when interfacing with Ceres (which only does unconstrained solving) through a sinusoidal mapping.

Results of tests are given at: http://wiki.blender.org/index.php/User:Sftrabbit/GSoC_2013/Documentation/Constraint_Tests

- Merging from trunk, r57878 through r58236;

- added tbb lib to macros.cmake;
- edited root CMakeLists.txt to add internal subdir for OPENVDB_INCLUDE_DIRS;
- removed #define ZLIB_WINAPI from extern/openvdb/internal/openvdb/io/Compression.h, which was causing conflicts with OpenEXR's IlmImf.h (which I assume already defines this).
- added preprocessor guard in openvdb/internal/openvdb/math/Coord.h, so #define NOMINMAX is specific to Windows;
- added extern_openvdb lib to intern/cycles/CMakeLists.txt;
- included openvdb.h in osl/osl_services.h, and called one of its methods to ensure it's working;
- added extern_openvdb to creator/CMakeLists.txt;

rename ID_PALETTE to ID_PAL, also expose palettes to RNA and present a
list of possible palettes under the colours in the UI.

Add new ID type for palettes. Palette types are quite simple, an rgb
pointer, and a count of rgb values.

Increasing the default distance between levels of detail from 10 to 25.

Limiting the target setting on the level of detail generation operator to a range of 0.0 - 1.0.

Mesh Sketch based on Laplacian Deform implemented as EditMesh tool.